CAIE P1 2023 November — Question 1

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2023
SessionNovember
TopicBinomial Theorem (positive integer n)
TypeRatio of coefficients condition

1 The coefficient of \(x ^ { 3 }\) in the expansion of \(( 3 + 2 a x ) ^ { 5 }\) is six times the coefficient of \(x ^ { 2 }\) in the expansion of \(( 2 + a x ) ^ { 6 }\). Find the value of the constant \(a\).